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Top Haskell repositories on GitHub

Pure functional language with a powerful type system.

Ranked by stars across 1,101 Haskell repositories on GitHub. Refreshed daily.

  1. 1
    jgm/pandoc★ 46,348 · ⑂ 4,355

    Universal markup converter

    • pandoc
    • haskell
    • markdown
    • markup
    • converter
    • publishing
  2. 2
    koalaman/shellcheck★ 40,058 · ⑂ 1,945

    ShellCheck, a static analysis tool for shell scripts

    • haskell
    • shell
    • static-analysis
    • bash
    • linter
    • developer-tools
  3. 3
    PostgREST/postgrest★ 27,674 · ⑂ 1,227

    REST API for any Postgres database

    • haskell
    • database
    • rest
    • postgresql
    • server
    • postgrest
  4. 4
    simplex-chat/simplex-chat★ 19,463 · ⑂ 1,356

    SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps 📱!

    • chat
    • protocol
    • e2ee
    • privacy
    • haskell
    • security
  5. Live search

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  6. 5
    hadolint/hadolint★ 12,419 · ⑂ 502

    Dockerfile linter, validate inline bash, written in Haskell

    • dockerfile
    • linter
    • shellcheck
    • haskell
    • dockerfile-linter
    • docker
  7. 6
    github/semantic★ 9,046 · ⑂ 465

    Parsing, analyzing, and comparing source code across many languages

    • keep
  8. 7
    purescript/purescript★ 8,915 · ⑂ 575

    A strongly-typed language that compiles to JavaScript

    • haskell
    • purescript
    • javascript
    • typed-language
    • alt-js
  9. 8
    elm/compiler★ 7,903 · ⑂ 691

    Compiler for Elm, a functional language for reliable webapps.

    • elm
    • compiler
  10. 9
    unisonweb/unison★ 6,734 · ⑂ 308

    A friendly programming language from the future

    • haskell
    • programming-language
    • unison
    • unison-language
    • hacktoberfest
  11. 10
    carp-lang/Carp★ 6,045 · ⑂ 187

    A statically typed lisp, without a GC, for real-time applications.

    • lisp
    • language
    • game-development
    • games
    • static
    • typed
  12. Live search

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  13. 11
    digitallyinduced/ihp★ 5,349 · ⑂ 226

    🔥 The fastest way to build type safe web apps. IHP is a new batteries-included web framework optimized for longterm productivity and programmer happiness

    • haskell
    • postgresql
    • nix
    • mvc
    • html
    • framework
  14. 12
    kmonad/kmonad★ 5,060 · ⑂ 337

    An advanced keyboard manager

    • cross-platform
    • haskell
    • keyboard
    • keyboard-layout
    • linux
    • macos
  15. 13
    hledgerorg/hledger★ 4,711 · ⑂ 414

    Robust, fast, intuitive plain text accounting tool with CLI, TUI and web interfaces.

    • hledger
    • haskell
    • ledger
    • web-application
    • console-application
    • command-line-tool
  16. 14
    facebook/Haxl★ 4,375 · ⑂ 309

    A Haskell library that simplifies access to remote data, such as databases or web-based services.

  17. 15
    facebook/duckling★ 4,322 · ⑂ 739

    Language, engine, and tooling for expressing, testing, and evaluating composable language rules on input strings.

  18. 16
    system-f/fp-course★ 4,244 · ⑂ 1,190

    Functional Programming Course

  19. Live search

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  20. 17
    commercialhaskell/stack★ 4,078 · ⑂ 850

    The Haskell Tool Stack

  21. 18
    HigherOrderCO/Kind★ 3,762 · ⑂ 152

    A modern proof language

    • formality
    • lambda-calculus
    • type-theory
    • proof-language
    • functional-programming
    • dependent-types
  22. 19
    input-output-hk/cardano-sl★ 3,745 · ⑂ 612

    Cryptographic currency implementing Ouroboros PoS protocol

    • haskell
    • stake-blockchain-protocol
    • cryptocurrency
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Find Haskell engineers and maintainers

The list above ranks the most-starred public Haskell repositories, drawn from the public GitHub graph. Across 1,101 Haskell repositories in the public graph, the maintainers, top contributors, and recurring committers are a powerful signal for where Haskell expertise lives.

Behind every popular Haskell project is a small group of people who actually shipped it. They’re the Haskell engineers, library authors, and infrastructure builders worth knowing - whether you’re hiring, partnering, or doing technical research.

Refolk turns this list into a search. Ask for “Haskell maintainers hiring”, “contributors to Haskell repos based in Europe”, or “companies whose engineers ship Haskell” and Refolk returns a ranked shortlist with the commits, repos, and profiles that earned each person a spot.

How this list is built

Refolk searched GitHub for public repositories whose primary language is Haskell, ranked them by stargazer count, and kept those with at least 100 stars. The list refreshes once a day.

Last refreshed: Sun, 20 Sep 2026 16:25:47 GMT

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Top repositories in other languages

See all language lists.

Popular Haskell sub-categories

Common questions

How are these repositories ranked?

By stars, with forks and recent activity as tiebreakers, read from the public GitHub API. The methodology section above has the details.

How fresh is the data?

The ranking re-renders at least daily. Last refreshed: Sun, 20 Sep 2026 16:25:47 GMT.

Can I find the maintainers and contributors behind these repos?

Yes. Stars rank the projects; I can rank the engineers - maintainers, top contributors, and the people they work with. You start with 500 free credits, no card required.

Can I use this list for hiring?

That's the point. I read hiring signals across GitHub, LinkedIn, and the open web, so a repo list turns into a shortlist of engineers worth talking to.

Try it on the search you came here for

Stop building boolean strings. Just describe the person.

Type one sentence. I plan the search, read GitHub, public LinkedIn and Crunchbase records, and the open web as it is right now, and hand back a ranked list with the reason next to every name.

  1. 01Describe them

    One plain sentence. Role, city, stack, stage, whatever matters to you.

  2. 02I read the web live

    GitHub, public LinkedIn and Crunchbase records, the open web. Not a database that went stale last quarter.

  3. 03You read the shortlist

    Ranked, with the reasoning under every name. Open a profile, ask a follow-up, narrow it down.

  • No boolean, no filters, no seat to buy. One box.
  • Read at search time, so a profile updated yesterday counts today.
  • Every step visible as it runs, every name with its reason.

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